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Built 2026-10-19 (19 October 2026)

Humboldt Threshold Days by Year (ASN00035034)

4 fixed thresholds counted per year at Humboldt (ASN00035034): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Humboldt Thresholds

  • Humboldt: days with 10 mm (0.39 in) or more of precipitation in 43 years, most in 1954 with 31.
  • Humboldt: days with 25 mm (0.98 in) or more of precipitation in 43 years, most in 1954 with 13.
  • Humboldt: days with 50 mm (1.97 in) or more of precipitation in 32 years, most in 1996 with 4.
  • Humboldt: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1954 with 2.
  • 4 fixed thresholds have at least one qualifying day at Humboldt.
43 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Humboldt Days per year at Humboldt with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 31 in 1954. 0102030401942: 211943: 211944: 111945: 221946: 161947: 171948: 121949: 191954: 311967: 111968: 171969: 91970: 181971: 141972: 171973: 141974: 211975: 201976: 221977: 171978: 251979: 101980: 141982: 71984: 251985: 171986: 171987: 141988: 161989: 201990: 151991: 111992: 171993: 171994: 71995: 161996: 211997: 141999: 72000: 162001: 152002: 92006: 7194219471968197319781985199019952001
Days per year at Humboldt with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 31 in 1954.
Days with 10 mm (0.39 in) or more of precipitation per year at Humboldt
YearDaysDecade average
19422117.4
19432117.4
19441117.4
19452217.4
19461617.4
19471717.4
19481217.4
19491917.4
19543131
19671112.3
19681712.3
1969912.3
19701817.8
19711417.8
19721717.8
19731417.8
19742117.8
19752017.8
19762217.8
19771717.8
19782517.8
19791017.8
19801416.3
1982716.3
19842516.3
19851716.3
19861716.3
19871416.3
19881616.3
19892016.3
19901513.9
19911113.9
19921713.9
19931713.9
1994713.9
19951613.9
19962113.9
19971413.9
1999713.9
20001611.8
20011511.8
2002911.8
2006711.8
First to last qualifying date each year at Humboldt For each year, a bar from the first to the last day at Humboldt meeting 10 mm (0.39 in). 1942: 18 January 1942 to 31 December 19421943: 2 January 1943 to 29 December 19431944: 6 January 1944 to 13 December 19441945: 11 January 1945 to 8 December 19451946: 20 January 1946 to 15 December 19461947: 11 January 1947 to 24 December 19471948: 2 January 1948 to 31 December 19481949: 10 January 1949 to 28 November 19491954: 2 January 1954 to 19 December 19541967: 19 January 1967 to 25 December 19671968: 6 January 1968 to 4 December 19681969: 19 January 1969 to 30 December 19691970: 21 January 1970 to 31 December 19701971: 4 February 1971 to 28 December 19711972: 14 January 1972 to 31 December 19721973: 30 March 1973 to 27 December 19731974: 1 January 1974 to 29 December 19741975: 2 January 1975 to 21 December 19751976: 14 January 1976 to 22 December 19761977: 4 January 1977 to 21 December 19771978: 6 January 1978 to 16 December 19781979: 7 February 1979 to 20 December 19791980: 6 January 1980 to 6 December 19801982: 16 January 1982 to 27 December 19821984: 15 January 1984 to 30 December 19841985: 23 January 1985 to 11 December 19851986: 6 January 1986 to 29 December 19861987: 5 January 1987 to 29 December 19871988: 4 January 1988 to 19 December 19881989: 6 January 1989 to 6 December 19891990: 25 March 1990 to 30 December 19901991: 5 January 1991 to 21 December 19911992: 2 January 1992 to 14 December 19921993: 12 January 1993 to 17 December 19931994: 3 February 1994 to 27 December 19941995: 1 January 1995 to 12 December 19951996: 9 January 1996 to 16 December 19961997: 26 January 1997 to 24 December 19971999: 25 February 1999 to 19 December 19992000: 4 January 2000 to 29 December 20002001: 11 January 2001 to 27 November 20012002: 5 January 2002 to 10 December 20022006: 5 April 2006 to 31 December 200619421948197019761984199019962006JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Humboldt meeting 10 mm (0.39 in).
First to last qualifying date each year at Humboldt
YearFirst dateLast date
19421942-01-181942-12-31
19431943-01-021943-12-29
19441944-01-061944-12-13
19451945-01-111945-12-08
19461946-01-201946-12-15
19471947-01-111947-12-24
19481948-01-021948-12-31
19491949-01-101949-11-28
19541954-01-021954-12-19
19671967-01-191967-12-25
19681968-01-061968-12-04
19691969-01-191969-12-30
19701970-01-211970-12-31
19711971-02-041971-12-28
19721972-01-141972-12-31
19731973-03-301973-12-27
19741974-01-011974-12-29
19751975-01-021975-12-21
19761976-01-141976-12-22
19771977-01-041977-12-21
19781978-01-061978-12-16
19791979-02-071979-12-20
19801980-01-061980-12-06
19821982-01-161982-12-27
19841984-01-151984-12-30
19851985-01-231985-12-11
19861986-01-061986-12-29
19871987-01-051987-12-29
19881988-01-041988-12-19
19891989-01-061989-12-06
19901990-03-251990-12-30
19911991-01-051991-12-21
19921992-01-021992-12-14
19931993-01-121993-12-17
19941994-02-031994-12-27
19951995-01-011995-12-12
19961996-01-091996-12-16
19971997-01-261997-12-24
19991999-02-251999-12-19
20002000-01-042000-12-29
20012001-01-112001-11-27
20022002-01-052002-12-10
20062006-04-052006-12-31

Every Fixed Threshold

Fixed thresholds at Humboldt
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain433119547
25 mm (0.98 in): Days with 25 mm or more rain431319542
50 mm (1.97 in): Days with 50 mm or more rain32419961
100 mm (3.94 in): Days with 100 mm or more rain2219541

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1942.

Download the Data

  • Data for Humboldt threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).